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Bauhinia Rufescens Lam Bauhinia rufescens Lam. Fabaceae - Caesalpinioideae LOCAL NAMES Arabic (kulkul,kharoub); Fula (nammare); Hausa (matsagi,jirga,jiga); Wolof (randa) BOTANIC DESCRIPTION Bauhinia rufescens is a shrub or small tree usually 1-3 m high, sometimes reaching 8 m; bark ash-grey, smooth, very fibrous and scaly when old; slash pink; twigs arranged in 1 plane like a fishbone, with thornlike, lignified, lateral shoots, 10 cm long. Leaves very small, bilobate almost to the base, with semi-circular lobes, glabrous, with long petioles, greyish-green, less than 3 cm long. Flowers greenish-yellow to white and pale pink, in few-flowered racemes; petals 5, spathulate, 15-20 mm long; stamens 10, filaments hairy at the base. Fruits aggregated, long, narrow pods, twisted, up to 10 cm long, glabrous, obliquely constricted, shining dark red-brown, with 4-10 seeds each. Pods remain on the shrub for a long time. The generic name commemorates Swiss botanists Jean (1541-1613) and Gaspard (1560-1624) Bauhin. The 2 lobes of the leaf exemplify the 2 brothers; ‘rufescens’ means ‘becoming reddish’. Agroforestry Database 4.0 (Orwa et al.2009) Page 1 of 5 Bauhinia rufescens Lam. Fabaceae - Caesalpinioideae ECOLOGY B. rufescens is deciduous in drier areas and is an evergreen in wetter areas. It is often found in dry savannah, especially near stream banks. It is found in the entire Sahel and adjacent Sudan zone, from Senegal and Mauritania across North Ghana and Niger to central Sudan and Ethiopia. BIOPHYSICAL LIMITS Altitude: 200-800 m, Mean annual temperature: Over 40 deg. C, Mean annual rainfall: 400-1000 mm Soil type: B. rufescens is found on poor, arid, sandy, stony soils, as well as on deep clays. DOCUMENTED SPECIES DISTRIBUTION Native: Burkina Faso, Chad, Ethiopia, Ghana, Kenya, Mali, Mauritania, Niger, Senegal, Sudan, Tanzania, Uganda Exotic: Native range Exotic range The map above shows countries where the species has been planted. It does neither suggest that the species can be planted in every ecological zone within that country, nor that the species can not be planted in other countries than those depicted. Since some tree species are invasive, you need to follow biosafety procedures that apply to your planting site. Agroforestry Database 4.0 (Orwa et al.2009) Page 2 of 5 The map above shows countries where the species has been planted. It does neither suggest that the species can be planted in every ecological zone within that country, nor that the species can not be planted in other countries than those depicted. Since Bauhinia rufescenssome tree species are invasive, you need to follow biosafety proceduresLam. that apply to your planting site. Fabaceae - Caesalpinioideae PRODUCTS Food: In Ghana, farmers, hunters and field workers eat the wild fruits. Fodder: The green and dried fruit and the leaves and shoots are valuable forage, favoured by many species of wild and domestic animals, which may cause the extinction of B. rufescens in regions overstocked with livestock. In Sudan, the pods are said to be the most valuable forage for camels. The nutritive value of the pods is characterized by crude protein 13.5% dry matter (DM), net energy 5.4 mJ/kg of DM, digestible protein/FU 0.19, and digestible DM (leaves) 51%. Fuel: The wood makes acceptable firewood and good charcoal. Fibre: The crude bark is used for binding. The bast fibre serves as a plaiting and binding material, and in Sudan the fibre is extracted for cordage. Timber: The light-brown, fine-grained wood can be used for carpentry, joinery and wood-carving if sizes sufficiently large are available; otherwise it is used as stakes and fence poles. Tannin or dyestuff: The bark contains tannin and is locally used for tanning hides. Medicine: An extract of the root is used as an astringent or antipyretic in local medicine. Leaves and fruit are applied for the treatment of diarrhoea, dysentery and ophthalmic diseases. The bark of the roots and trunk is used to cure chest complaints, syphilis and other venereal diseases, leprosy, diarrhoea and dysentery and to reduce fever. SERVICES Erosion control: Planting B. rufescens in dunes can help stabilize and control them. Ornamental: The tree is sometimes planted as an ornamental. It is suitable for roadsides, and it may easily be grown indoors provided the conditions are warm and brightly lit. Boundary or barrier or support: B. rufescens provides a good, impenetrable, browse-resistant live fence; useful for protecting gardens, fields and compounds. Agroforestry Database 4.0 (Orwa et al.2009) Page 3 of 5 Bauhinia rufescens Lam. Fabaceae - Caesalpinioideae TREE MANAGEMENT Seedlings are fairly hardy but need to be protected from browsing animals for at least 1 season. Growth is fairly slow, with a height of 1 m expected after 2 years where annual rainfall is 500 mm. If the tree is to be established in clay soils, some form of micro-catchment is recommended. There is not much experience in managing this species as yet, but it should be researched regarding production of forage. Bauhinia regenerates quickly and abundantly after browsing. GERMPLASM MANAGEMENT Seed storage behaviour is orthodox; no loss in viability during 1 year in hermetic storage at 4 deg. C. There are approximately 9000-10 000 seeds/kg. Agroforestry Database 4.0 (Orwa et al.2009) Page 4 of 5 Bauhinia rufescens Lam. Fabaceae - Caesalpinioideae FURTHER READNG FAO, UNEP. 1983. Notes on trees and shrubs in arid and semi-arid regions. EMASAR phase II. FAO, Rome. Hong TD, Linington S, Ellis RH. 1996. Seed storage behaviour: a compendium. Handbooks for Genebanks: No. 4. IPGRI. Sahni KC. 1968. Important trees of the northern Sudan. United Nations and FAO. Tchoundjeu Z. 1996. Vegetative propagation of Sahelian agroforestry tree species: Prosopis africana and Bauhinia rufescens. International Centre for Research in Agroforestry (ICRAF) c/c ICRISAT BP 12 404 Niamey Niger. Vogt K. 1995. A field guide to the identification, propagation and uses of common trees and shrubs of dryland Sudan. SOS Sahel International (UK). von Maydell HJ. 1986. Trees and shrubs of the Sahel - their characteristics and uses. GTZ 6MBH, Eschborn. SUGGESTED CITATION Orwa C, A Mutua, Kindt R , Jamnadass R, S Anthony. 2009 Agroforestree Database:a tree reference and selection guide version 4.0 (http://www.worldagroforestry.org/sites/treedbs/treedatabases.asp) Agroforestry Database 4.0 (Orwa et al.2009) Page 5 of 5.
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